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Finding the Fourth Proportional to 220,379.46, 304,130.07 and 124,882.98

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Solution

The fourth proportional to 220,379.46, 304,130.07 and 124,882.98 is: 172,342.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,379.46 : 304,130.07 = 124,882.98 : x
  2. Step 2: Convert to fraction form
    220,379.46/304,130.07 = 124,882.98/x
  3. Step 3: Cross multiply
    220,379.46x = 304,130.07 × 124,882.98
  4. Step 4: Simplify right side
    220,379.46x = 37,980,669,449.21
  5. Step 5: Solve for x
    x = 37,980,669,449.21/220,379.46
  6. Step 6: Final answer
    x = 172,342.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.